Alert archive / Oklahoma / Flash Flood Warnings in 2026

Flash Flood Warning 11, NWS Norman, OK

April 10, 2026Payne County, Oklahoma

NWS Norman, OK issued this flash flood warning at Apr 10, 2026, 1:57 PM CDT for Payne County, Oklahoma. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 10, 2026, 1:57 PM CDT (18:57 UTC)
Expired
Apr 10, 2026, 5:00 PM CDT
In force
3 hr
Issued by
NWS Norman, OK
Area
Storm-based polygon
Flood severity
None

County Payne County, OK

The radar

The Norman radar (KTLX), 87 km from the middle of the area, began a volume at 18:58 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 7.0 hours before the alert went out and 103 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Norman, OK at 12:00Z on 2026-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 380 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 12:00Z on 2026-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
380 J/kg
Mixed-layer CIN
-161 J/kg
Mixed-layer LCL
779 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
244 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.4

Open this sounding in Storm Lab

The office that day

Everything else NWS Norman, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 10, 12:17 PM CDTAreal Flood AdvisoryOUNPayne3 hr
Apr 10, 1:19 PM CDTAreal Flood AdvisoryOUNGarfield, Logan, Noble3 hr
Apr 10, 2:23 PM CDTAreal Flood AdvisoryOUNPayne3 hr
Apr 10, 5:00 PM CDTSpecial Weather StatementOUNPottawatomie30 min
Apr 10, 5:16 PM CDTAreal Flood AdvisoryOUNLincoln, Pottawatomie, Seminole3 hr
Apr 10, 5:26 PM CDTSpecial Weather StatementOUNSeminole34 min
Apr 10, 5:29 PM CDTFlash Flood WarningOUNPottawatomie, Seminole3 hr
Apr 10, 5:34 PM CDTSevere Thunderstorm WarningOUNPottawatomie, Seminole41 min
Apr 10, 5:59 PM CDTSevere Thunderstorm WarningOUNPottawatomie, Seminole31 min
Apr 10, 6:11 PM CDTAreal Flood AdvisoryOUNPottawatomie, Seminole3 hr
Apr 10, 6:29 PM CDTSpecial Weather StatementOUNPottawatomie31 min
Apr 10, 6:36 PM CDTSpecial Weather StatementOUNBlaine24 min
Apr 10, 6:55 PM CDTSevere Thunderstorm WarningOUNBlaine, Dewey, Major35 min
Apr 10, 6:56 PM CDTSpecial Weather StatementOUNPottawatomie34 min

Nearby

Flash Flood Warnings in Oklahoma, 2026Every flash flood warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.